55317995797 has 4 divisors (see below), whose sum is σ = 58229469280. Its totient is φ = 52406522316.

The previous prime is 55317995753. The next prime is 55317995807. The reversal of 55317995797 is 79759971355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55317995797 - 2¹⁹ = 55317471509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55317995717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455736713 + ... + 1455736750.

It is an arithmetic number, because the mean of its divisors is an integer number (14557367320).

Almost surely, 2^55317995797 is an apocalyptic number.

It is an amenable number.

55317995797 is a deficient number, since it is larger than the sum of its proper divisors (2911473483).

55317995797 is a wasteful number, since it uses less digits than its factorization.

55317995797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911473482.

The product of its digits is 93767625, while the sum is 67.

The spelling of 55317995797 in words is "fifty-five billion, three hundred seventeen million, nine hundred ninety-five thousand, seven hundred ninety-seven".